家兔腓骨长肌肌内神经及运动终板分布  

Distribution of intramuscular nerve and motor endplates in peroneus longus of rabbits

作　　者：李爱红[1] 薛黔[2] 

机构地区：[1]山西医科大学组织胚胎学教研室,山西太原030001 [2]遵义医学院人体解剖学教研室,贵州遵义563003

出　　处：《遵义医学院学报》2007年第4期449-451,共3页Journal of Zunyi Medical University

基　　金：国家教育部科学技术研究重点课题资助项目(C-239)

摘　　要：目的研究腓骨长肌肌内神经和运动终板分布,提供肌内神经分布的形态学资料。方法大体解剖法、改良Sihler’s肌内神经染色法、乙酰胆碱酯酶运动终板染色法。结果家兔腓骨长肌外观呈梭形,肌腱很长。肌内神经有4支:内上支呈横形走行,分支支配肌内侧上部;内下支行于肌内侧,支配肌中下段内侧部;外下支支配肌中下段的外侧和中部;外上支短细,位于肌外侧上端。运动终板呈环状分布于腓骨长肌周缘;横断面和矢状面上可见线形终板带。结论家兔腓骨长肌为半羽肌;腓骨长肌肌内神经初级分支多,神经的行程大多与肌长轴平行;运动终板呈环状排列。Objective To investigate the distribution of intramuscular nerves and motor endplates of muscle peroneus longus in rabbit, to provide morphologic datas of the distribution of intramuscular nerves. Methods Gross anotomy method, Modified sihler＇s staining and acetylcholinesterase staining method. Results Muscle peroneus longus is spindle in appearance in rabbit. Muscle tendon is long.Intramuscular nerves of muscle peroneus longus send out four primary branches in rabbit：Cross medial upside branch innervat medial upside of muscle; Medial inferior branch penetrate in wall and innervated medial fiber of middle and inferior of muscle; Lateral Inferior branch innervate lateral and middle muscle fiber of middle and inferior segment;Lateral upside branch is short and minute, located in lateral upside of muscle. Motor end plate forms a band and locates in circumferentia of muscle peroneus longus;On horizontal and sagittal plane,a black straight line motor endplate brand was seen. Conclusions Muscle peroneus longus is unipennate muscle in rabbit;Intramuscular nerves had many primary branches, and most parallelled with muscular long axis;Motor end plate arranged in ring.

关 键 词：腓骨长肌 肌内神经 运动终板 家兔 

分 类 号：R322[医药卫生—人体解剖和组织胚胎学]